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Note 3 - Restricted Cash (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Restrictions on Cash and Cash Equivalents [Table Text Block]
  

June 30,

  

December 31,

 
  

2021

  

2020

 
         

Insurance premium escrow

 $203,319  $280,269 

Cash held in trust

  7,561   - 
         
  $210,880  $280,269 
  

June 30,

  

December 31,

 
  

2021

  

2020

 
         

Cash and cash equivalents

 $57,133,444  $44,665,972 

Funds held as collateral

  8,349,537   10,006,075 

Restricted cash

  210,880   280,269 
         

Total Cash, Cash Equivalents, and Restricted Cash as Presented in the Consolidated Statement of Cash Flows

 $65,693,861  $54,952,316